It shouldn’t do. Most companies will do all the interior work first, and the last job to do will be creating the opening from the house to the conversion. A reputable company will make sure they cause as little disruption as possible during this time.
Hebden Bridge
Hebden Bridge is a market community in the Upper Calder Valley in West Yorkshire, England. It is 8 miles (13 kilometres) west of Halifax and 14 miles (21 kilometres) north-east of Rochdale, at the assemblage of the River Calder as well as the Hebden Water. The town is the largest settlement in the civil church of Hebden Royd. In 2015, the Calder ward, covering Hebden Bridge, Old Town, and part of Todmorden, had a population of 12,167 the town itself has a population of around 4,500. It is understood for being an LGBT-friendly town, and also has actually been called the UK's "lesbian capital".